. >>> the crisis in egypt escalates as police and protesters clash in tahrir square. the demonstration planned this week that has some people there very nervous. plus, and holiday shopping hits an all-time high and what experts say made the biggest difference this year. >>> plus in the driver's seat and the program at san francisco's auto show that allows people to take cars out for a spin. >>> in continuing coverage of the crisis in egypt, this is one of numerous clashes today between police and protesters. they are angry at president mohamed morsi who granted himself sweeping powers last week and made himself immune to the district courts. tonight tahrir square the birthplace of the egyptian revolution looks like an occupy site. thousands of protesters have set up camp there. the square may not stay calm for long as president morsi's party the muslim brotherhood plans a massoy demonstration and protesters say they have no intention of leaving. >> reporter: things calmer in tahrir square where you have a few thousand people gathered here very much reminiscent of the